ATI RN
Anatomy and Physiology of the Female Reproductive System Questions
Question 1 of 5
The endometrial thickness is greatest during the:
Correct Answer: A
Rationale: The correct answer is A: Secretory phase. During the secretory phase of the menstrual cycle, the endometrial thickness is greatest due to increased progesterone levels, leading to thickening of the endometrium in preparation for potential implantation of a fertilized egg. This phase occurs after ovulation and is characterized by glandular secretions and increased vascularity to support a potential pregnancy. Summary: - Menstrual phase (B) is incorrect as it is characterized by shedding of the endometrial lining. - Proliferative phase (C) is incorrect as it involves endometrial thickening but not to the extent seen in the secretory phase. - Late follicular phase (D) is incorrect as it precedes ovulation and is primarily characterized by follicular development rather than significant endometrial thickening.
Question 2 of 5
The main commissural fiber in the brain is:
Correct Answer: A
Rationale: The correct answer is A: Corpus callosum. The corpus callosum is the main commissural fiber in the brain that connects the two cerebral hemispheres, allowing for communication and coordination between them. It is the largest and most prominent commissural fiber in the brain, making it the correct choice. Summary of why other choices are incorrect: B: Anterior commissure - Connects certain regions of the cerebral hemispheres, but not as prominent or as large as the corpus callosum. C: Posterior commissure - Connects certain structures in the brainstem, not the cerebral hemispheres. D: Hippocampal commissure - Connects the two hippocampi, not the cerebral hemispheres.
Question 3 of 5
A 5-day-old infant male has an abnormally large head. A CT scan examination reveals enlarged lateral and third ventricles but a normal-size fourth ventricle. Which of the following conditions is likely to cause this presentation?
Correct Answer: C
Rationale: The correct answer is C: Stenosis of aqueduct of Sylvia. This condition causes obstruction in the Sylvian aqueduct, leading to hydrocephalus with enlarged lateral and third ventricles but a normal fourth ventricle. Holoprosencephaly (A) is a midline defect, not specific to ventricle enlargement. Disorder of prosencephalon (B) is too broad and doesn't specifically address ventricle enlargement. Meningitis with blockage of arachnoid villi (D) is typically associated with communicating hydrocephalus, not specific to the aqueductal stenosis pattern seen in this case.
Question 4 of 5
Which of the following structures is not classified as internal genitals of the female reproductive system?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
The layer that is incomplete because it covers none of the cervix and only part of the body is called the:
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.